Hand washed in washbasin with cold water and a small bit of liquid detergent. About a gallon of water. I have the black one and it bled dye so bad you couldn't see thru the water. Repeated after 30 minutes and it bled again, but not as much. The item remained black but I will always hand wash this item as the dye was not properly "set" during mfg. I won't be wearing it over light colored clothes if I think perspiration may trigger a stain.